Conditions list medically reviewed by George Krucik, MD, MBA
During a heart attack, the blood supply that normally nourishes the heart with oxygen is cut off and the heart muscle begins to die. Learn more.
A head injury is an injury to your brain, skull, or scalp. All head injuries should be treated seriously and assessed by a doctor.
Anaphylaxis can occur when you have a severe reaction to certain allergens. Learn what the symptoms are and what to do if this happens.
A skull fracture is any break in the cranial bone, or the skull. It can result in bleeding, bruising, pain, and swelling. Less severe symptoms include headache, nausea…
Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared…
Panic disorder occurs when you live in fear of a panic attack. You may be having a panic attack when you feel sudden, overwhelming terror with no obvious cause.
Swine flu, or H1N1, is highly contagious and can spread quickly from person to person. A simple sneeze may cause thousands of germs to spread through the air.
Food allergies are overblown responses by the immune system to foods that aren't typically harmful - like eggs and peanuts. Continue reading and learn more about food…
Learn about stable angina and what causes it. Find information on stable angina symptoms, risk factors, diagnosis, and treatment.
Ischemic cardiomyopathy (IC) is a condition that occurs when the heart muscle is weakened. It's usually caused by heart attack or coronary artery disease.
Malignant hypertension is a rare and severe condition in which blood pressure is dangerously high. Learn more about symptoms and treatments.
Hypertensive heart disease refers to heart conditions caused by high blood pressure. Possible symptoms of acute hypertension include sweating and chills.
A hiatal hernia occurs when the upper part of your stomach pushes up through your diaphragm and into your chest cavity. Common symptoms include heartburn, belching, and…
Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).
The recommended amount of caffeine is usually 400 mg per day for healthy adults. Caffeine overdose may occur if you ingest more than this amount.
Learn about what causes allergies, the different types of allergies, and how they're treated.
A hernia occurs when an organ pushes through the muscle or tissue that holds it in place. Read on to learn about its causes and treatments.
Diabetic ketoacidosis (DKA) is a serious complication of type 1 diabetes, though it can also rarely be seen in people with type 2 diabetes.
Learn how people often react to black widow spider bites. Read about how they can be treated and avoided.
Learn about carbon monoxide poisoning and what causes it. Find information on carbon monoxide symptoms, diagnosis, treatment, and prevention.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.